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    10 <!DOCTYPE concept

    11   PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

    12 <concept id="GUID-1A9B3BB8-9F68-5C71-9534-A59638BBCD1E" xml:lang="en"><title>Floating-point

    13 numbers</title><shortdesc>This document describes the floating-point data types.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

    14 <p><xref href="GUID-2D851BBB-15A1-309A-813D-E397D55A6431.dita"><apiname>TReal</apiname></xref> is a 64-bit double-precision type, used as the

    15 argument type for all math functions, and the default type of floating-point

    16 literals.</p>

    17 <p><xref href="GUID-E694921E-0449-3B0B-81DC-5A9FCC07B345.dita"><apiname>TReal64</apiname></xref> and <xref href="GUID-58CA4B68-0A0F-31E2-A624-0F78F47EE458.dita"><apiname>TReal32</apiname></xref> are available

    18 when the precise size is important.</p>

    19 <p>Symbian platform floating-point arithmetic conforms to the IEEE754 specification.</p>

    20 <p>Most Symbian platform implementations do not have hardware floating-point

    21 support. As a result, floating-point arithmetic is noticeably less efficient

    22 than integer arithmetic. It should be avoided unless demanded by the problem

    23 type.</p>

    24 </conbody></concept>